(Senior) Java Developer (m/f/d) Festanstellung, Vollzeit Karlsruhe

About

What you can expect

• Join an internationally successful development team and help shape a secure, highly available platform.
• We care about clean, maintainable code. Quality and trade-offs are discussed openly, not treated as formality.
• You’ll work with modern technologies like Java 25, Spring, MySQL, and GitLab CI.
• Shape solutions alongside product, UX, and your fellow developers – your perspective goes into the design, not just the implementation.
• Invest in your growth: 10% of your working time is reserved for learning or personal projects.

What sets you apart

You…

• Think in terms of the problem, not just the ticket, you ask why something is being built, not only what.
• Write code that others can read, change, and trust, and you care about the craft of doing so.
• Collaborate naturally with teammates and other teams, and communicate clearly in writing and in conversation.
• Take ownership from problem to production – you see features through, not just to the pull request.
• Value pragmatism over purity. You can tell the difference between "good enough for now" and "this will hurt us later."

And you bring hands-on experience with:

• Java and its ecosystem, with solid fundamentals in testing, version control, CI/CD, and how software runs in production.
• Some of the tools we use day-to-day (Spring, Maven or Gradle, SQL, GitLab) knowing the rest can be picked up on the job.

What we offer

• We only offer permanent employment contracts.
• 30 days of vacation per year.
• Working from HQ in Karlsruhe? Our kitchen conjures up a truly excellent, free meal for you every day.
• On December 24th and 31st, we’ll give you an additional day off.
• Work abroad for up to 20 days per year: Working with a sea view? Yes, please!

: We believe in the power of diversity.

Diversity is our strength.
At Chrono24, we embrace diversity because we believe it enriches not only our corporate culture but also our success. Be yourself – and let’s achieve great things together!